2. 外语
  3. American society is not nap-friendly. In fact, there’s even a【B1】______against admitting we need sleep. Nobody wants to be caugh

American society is not nap-friendly. In fact, there’s even a【B1】______against admitting we need sleep. Nobody wants to be caugh

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问题     American society is not nap-friendly. In fact, there’s even a【B1】______against admitting we need sleep. Nobody wants to be caught napping or found asleep at the Switch. To quote an【B2】______ proverb: "Some sleep five hours, nature requires seven, laziness nine and【B3】______eleven."
    Wrong. The way not to fall a sleep at the switch is to take naps when you need them. "We have to【B4】______change our attitude toward napping," says Dr. William Dement of Stanford University, the【B5】______of sleep research.
    Last year a national commission led by Dement【B6】______an "American sleep debt," which one member said was as important as the national debt. The commission was concerned about the dangers of【B7】______: people causing industrial accidents or falling asleep while driving.
    About 60 percent of American【B8】______nap when given the opportunity.【B9】______ Clearly, we were born to nap.
   【B10】______,particularly if you’re supposed to be doing something else. And, we should all note, 【B11】______.
【B9】
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答案Sleeping 15 minutes to two hours in the early afternoon can reduce stress and improve alertness
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